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Primary microscopy and biology. A text book for the use of students in high schools, normal schools and academies (1890)

Schneider, Albert, 1863- [from old catalog] · Fairbury, Ill., The Blade printing office · leaf 19

An illustration from Primary microscopy and biology. A text book for the use of students in high schools, normal schools and academies, 1890, leaf 19 — 54 Crown Glass (mean) 1.53 Alcohol 1.37 Water 1.34 Ice 1.31 Air 1.000294 —Olmsteads Philosophy. Fig. 6. i ^ i—-?/ / >/ Q/~J Qs/~ S UKFIIACTION BY A MEDIUM HAVING PLANE PARALLEL SURFACES. (34) Substituting in article (31). , . sine a(1) i=— sine a(2) sine a =i sine a11 Also (3) sine a1 -sine a l… … REFRACTION BY A MEDIUM BOUXDEI) BY INCLINED PLANES. (35) A transparent medium bounded by inclined planesis called a prism. The angle included by the planes is calledthe refracting angle and the planes are called deviatingplanes. (36) The total deviation by a prism is equal to the sumof the angles…

Microscopy · Biology

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